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miham

(svn r9796) -Update: WebTranslator2 update to 2007-05-06 19:05:33
brazilian_portuguese - 10 fixed by tucalipe (10)
bulgarian - 5 fixed by thetitan (5)
catalan - 9 fixed by arnaullv (9)
czech - 9 fixed by Hadez (9)
esperanto - 11 fixed by LaPingvino (11)
finnish - 11 fixed by habazi (11)
french - 9 fixed by belugas (9)
german - 9 fixed by Neonox (9)
hungarian - 9 fixed by miham (9)
italian - 9 fixed by lorenzodv (9)
japanese - 2 fixed by ickoonite (2)
korean - 9 fixed by darkttd (9)
norwegian_nynorsk - 11 fixed by pollux (11)
polish - 8 fixed by meush (8)
portuguese - 21 fixed, 6 changed by supra90 (27)
romanian - 11 fixed by kneekoo (11)
spanish - 2 fixed by eusebio (2)
swedish - 11 fixed by giddorah (11)
traditional_chinese - 11 fixed, 2 changed by xbddc (13)
turkish - 8 fixed by jnmbk (8)
ukrainian - 11 fixed by mad (11)

/* $Id$ */

/** @file bridge_map.cpp Map accessor functions for bridges. */

#include "stdafx.h"
#include "openttd.h"
#include "bridge_map.h"
#include "bridge.h"
#include "variables.h"


TileIndex GetBridgeEnd(TileIndex tile, DiagDirection dir)
{
	TileIndexDiff delta = TileOffsByDiagDir(dir);

	dir = ReverseDiagDir(dir);
	do {
		tile += delta;
	} while (!IsBridgeTile(tile) || GetBridgeRampDirection(tile) != dir);

	return tile;
}


TileIndex GetNorthernBridgeEnd(TileIndex t)
{
	return GetBridgeEnd(t, ReverseDiagDir(AxisToDiagDir(GetBridgeAxis(t))));
}


TileIndex GetSouthernBridgeEnd(TileIndex t)
{
	return GetBridgeEnd(t, AxisToDiagDir(GetBridgeAxis(t)));
}


TileIndex GetOtherBridgeEnd(TileIndex tile)
{
	assert(IsBridgeTile(tile));
	return GetBridgeEnd(tile, GetBridgeRampDirection(tile));
}

uint GetBridgeHeight(TileIndex t)
{
	uint h;
	Slope tileh = GetTileSlope(t, &h);
	uint f = GetBridgeFoundation(tileh, DiagDirToAxis(GetBridgeRampDirection(t)));

	/* one height level extra if the ramp is on a flat foundation */
	return
		h + TILE_HEIGHT +
		(IS_INT_INSIDE(f, 1, 15) ? TILE_HEIGHT : 0) +
		(IsSteepSlope(tileh) ? TILE_HEIGHT : 0);
}